The correct answer is to create a hosted zone and let Route 53 automatically handle the DNS resolution, because when you provision a hosted zone, AWS inherently deploys four authoritative name servers across globally distributed, redundant data centers. This built-in architecture eliminates any single point of failure and leverages Anycast routing to direct queries to the nearest healthy server, ensuring both high availability and low latency by default. For the AWS Certified Advanced Networking Specialty ANS-C01 exam, this concept tests your understanding that Route 53’s default configuration already satisfies high availability requirements—a common trap is overcomplicating the setup with additional failover policies or load balancers when the question explicitly asks for the default behavior. Remember the memory tip: “Four NS records, zero configuration needed” to recall that Route 53’s high availability is automatic, not something you manually engineer.
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to use Amazon Route 53 to resolve DNS queries for a domain they own. They want to ensure that DNS queries are answered quickly and that there is no single point of failure. Which configuration should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a hosted zone and let Route 53 automatically handle the DNS resolution.
Option B is correct because when you create a hosted zone in Route 53, AWS automatically provisions four authoritative name servers (NS records) distributed across multiple globally redundant data centers. This design inherently provides high availability and low-latency DNS resolution without any additional configuration, as Route 53 uses Anycast routing to direct queries to the nearest healthy name server.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Deploy Route 53 in multiple AWS Regions.
Why it's wrong here
Route 53 is a global service, not regional.
✓
Create a hosted zone and let Route 53 automatically handle the DNS resolution.
Why this is correct
Route 53 is inherently highly available.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create multiple hosted zones in separate AWS accounts.
Why it's wrong here
Unnecessary complexity.
✗
Create a single hosted zone and assign it to one Route 53 name server.
Why it's wrong here
Route 53 automatically assigns four name servers for high availability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think Route 53 is a regional service like EC2 or RDS, leading them to choose Option A, or they may mistakenly believe that creating multiple hosted zones or accounts increases redundancy, when in fact a single hosted zone with its four automatically assigned name servers already provides full fault tolerance and low latency.
Detailed technical explanation
How to think about this question
Route 53 hosted zones are automatically assigned four unique name server addresses (e.g., ns-xxx.awsdns-xx.net) that are globally distributed and use Anycast routing, meaning the same IP address is advertised from multiple locations so queries are answered by the nearest healthy server. Under the hood, Route 53 uses a combination of authoritative DNS servers and a global network of DNS resolvers to achieve sub-50ms query times for most users, and it supports features like alias records and health checks that further enhance reliability.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network Design — This question tests Network Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a hosted zone and let Route 53 automatically handle the DNS resolution. — Option B is correct because when you create a hosted zone in Route 53, AWS automatically provisions four authoritative name servers (NS records) distributed across multiple globally redundant data centers. This design inherently provides high availability and low-latency DNS resolution without any additional configuration, as Route 53 uses Anycast routing to direct queries to the nearest healthy name server.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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